src/d2cs/d2cs_random.c

#include <time.h>
#include <stdlib.h>

static int d2cs_random_init(void)
{
        struct timeval tv;

        if(!gettimeofday(&tv,NULL)) {
                const unsigned int seed=(unsigned int)tv.tv_sec^tv.tv_usec;
                srandom(seed);
                return 0;
        }else{
                return -1;
        }

}

extern int d2cs_random_num(void)
{
        if(d2cs_random_init()) 
                return -1;
        return (random()%10);
}

extern char d2cs_random_char(void)
{
        if(d2cs_random_init())
                return -1;
        return (random()%7+97);
}
1	#include <time.h>
2	#include <stdlib.h>
3
4	static int d2cs_random_init(void)
5	{
6	struct timeval tv;
7
8	if(!gettimeofday(&tv,NULL)) {
9	const unsigned int seed=(unsigned int)tv.tv_sec^tv.tv_usec;
10	srandom(seed);
11	return 0;
12	}else{
13	return -1;
14	}
15
16	}
17
18	extern int d2cs_random_num(void)
19	{
20	if(d2cs_random_init())
21	return -1;
22	return (random()%10);
23	}
24
25	extern char d2cs_random_char(void)
26	{
27	if(d2cs_random_init())
28	return -1;
29	return (random()%7+97);
30	}
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